The Xperia Z5 Premium fingerprint scanner is a novelty; it’s there for Xperia Z5-class Sony smartphones, embedded in the side-mounted power key on the Xperia Z5 Compact, Z5, and Z5 Premium, but how does it really perform in real life?Having a side-mounted fingerprint scanner can we awkward, or it can be the perfect placement. We’ve heard both sides of the story, but, in the end, its placement isn’t as relevant and important as its performance. We’ve been extensively testing the Xperia Z5 Premium for more than a week now, and we can say that the fingerprint scanner is a hit or ...